Popular questions

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2005 Chevy Avalanche dash lights occasionally go dim.
Yes, but any component in the lighting circuit could cause or contribute to the problem. An intermittent fault is causing a voltage drop in the circuit and that, in turn is causing the lights to dim. Often, there is a...
Question
AC makes noise after putting on expansion valve
Hello. It sounds like your new compressor may be failing. Flushing the system is not enough when the compressor fails. When there is debris in the system, it gets stuck in the expansion valves, the condenser, and the accumulator. If...
Question
My driver side tire makes a clicking sound like a baseball card in a bike tire. It does not happen driving over 50 mph
Hi. This sounds like the you have a bad wheel bearing on your passenger side front wheel. Sometimes bad wheel bearings will only make noise at low speeds. This is usually the case when the wheel bearing is first starting...
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Clicking sound coming from engine, increases with acceleration.
It sounds like it could possibly be a motor mount or transmission mount causing the problem. If you see a lot of movement in the engine when you have it in gear you probably have a cracked or broken motor...
Question
Camshaft position sensor error code P0343
Hello. The P0343 code indicates there is no signal from the passenger side cam position sensor (Bank 1 actually). Given you have changed the sensor, this would suggest a wiring or connector issue. Your mileage would also make me anxious...
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Slow/no acceleration...High RPMs...No engine light
I do see that there are a couple of different Technical Service Bulletin's (TSB's) that may be associated with your 2007 Dodge Charger. I would first contact the dealership to verify whether or not the issue would be covered. This...
Question
How can I be sure i am having a Throttle Position Sensor issue?
Typically a throttle position sensor (TPS) is tested using a multimeter. The specs to compare against are published in the Factory Service Manual. As long as the TPS tests within the range of published values, and does not display intermittent...
Question
Make loud growling noise for couple days. Then died on highway yesterday. Wont start back up
In my opinion your water pump was making the noise. This is one of many possible scenarios. 160K is roughly the amount of miles that a factory water pump will fail. It is driven by the timing belt. When it...
Question
Acts like out of gas.sputters dies then runs sputters and dies.gas in it fuel pump working smells like carbon,hot
This may be a result of a faulty oxygen sensor. As you may know the oxygen sensors which are part of your emissions system read exhaust gases to determine whether or not the appropriate amount of oxygen is present in...
Question
Truck dies while driving - 2000 Dodge Dakota
Hello. You may have several issues at once contributing to the stalling. You will want to start by having the vehicle scanned for diagnostic troubleshooting codes. This can be done by a mechanic or at most local auto parts stores....
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Smoke that is not coming from exhaust when going above 60 mph.
Hey there. If the smoke is not coming from the exhaust, it may be possible that the white smoke is coming from oil leaking onto a hot exhaust manifold or another piece of the motor or exhaust. The PCV valve,...
Question
Failed engine, flywheel came off as well
The only way to determine the failure mode of the bolts is to send the "assembly" to a forensic laboratory equipped with a scanning electron microscope. If the bolts were loose, there would have been noticeable vibration and noise prior...
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Speedometer and Odometer stopped working.
The speedometer on your Mustang is electronically controlled. The speedometer is powered on the light green with yellow stripe wire from the #8 fuse in the dash panel fuse box. The grey/black and the green/orange wires go to the vehicle...
Question
What does the Engine Oil Pressure Light mean on the dash?
Your car’s engine needs oil – it lubricates, reduces friction and ensures a long life. However, it also needs to maintain the right amount of pressure in the engine. If pressure drops, it means there’s something going wrong. The Engine...
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Knocking noise. Is it a problem with the belt?
Hello - No, it is incorrect to assume that you couldn't install the new tensioner even though it is of different length. Was the new tensioner longer or shorter? If shorter, there may not be adequate tension on the belt,...
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I have a 2000 Nissan Xterra. The Rpms would jump up and down and then my power steering went out and all lights came on and I had
Hi there. Honestly, the symptoms you are describing can be caused by multiple possible sources, ranging from a damaged fuel pump, dirty fuel filter, vacuum line problem or even a serpentine belt failure. Since money is tight, it's probably better...
Question
Runs fine when cold- after 1/2 hour or so , spits and sputters then quits
Hi and thanks for contacting YourMechanic. To me this symptom sounds like three different problems that could be happening. One problem is that the Engine Gas Recirculation valve (EGR valve) could be stuck open. This will cause the exhaust...
Question
Crankshaft replacement fit? 2006 Hummer H3
Hello - the crankshaft on the 3.7l LLR engine does in fact have the same stroke as the L52 3.5l engine in your H3, so there is a good chance it is compatible. Check with your Hummer parts specialist for...
Question
I have to jump my car repeatedly.everytime I try to start my car no matter how long it was running for.altenator belt still spins.
If your car will not stay running after jump starting then the charging system is not working and may need an alternator and may even also need a new battery. If you need help with this, I recommend having a...
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Starting issues
Hello and thanks for writing in. Depending on what the vehicle does when trying to start it may help to narrow this down. If it produces a click sound, this may be related to a faulty starter solenoid. If it...
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My car is stalling even when i’m driving it
When the vehicle stalls, does the Check Engine light illuminate? If so, does it remain illuminated when the vehicle is restarted? If it does, a mechanic should be able to diagnose the problem with a scan tool. Stalling can often...
Question
Would leaking exhaust manifold throw a code?
If the exhaust system is not air tight, that will skew oxygen sensor readings and a consequence is a false indication of catalyst efficiency. In addition, the upstream sensor will not be providing a valid reading to the computer insofar...